Similarities and differences between Java super and this

Similarities and differences between Super and this: super (parameter): Call one of the constructors in the base class (which should be the first statement in the constructor) this (argument): Call another constructor in this class (which should be the first statement in the constructor) Super: It refers to members in the immediate parent class of the current object (used to access member data or functions in a parent class that is hidden in the immediate parent class. When a base class has the same member definition as a derived class: Super. Variable name super. member function name (argument) This: it represents the current object name (where two of the semantics are easily generated in a program, You should use this to indicate the current object, and if the member data in the function's shape-participating class has the same name, you need this to indicate the member variable name. The call super () must be written in the first line of the subclass constructor, otherwise the compilation does not pass. The first statement of each subclass construction method implicitly calls Super (), and if the parent class does not have this form of constructor, the error occurs at compile time. Super () is similar to this (), except that super () calls the constructor method of the parent class from the subclass, this () calls other methods within the same class. The super () and this () all need to be placed in the first row within the construction method. Although you can call a constructor with this, you cannot call two. This and super cannot appear in a constructor at the same time, because this is bound to invoke other constructors, and other constructors must have the presence of a super statement, so the same statement in the same constructor loses the meaning of the statement and the compiler does not pass. This () and super () all refer to objects, so they cannot be used in a static environment. Includes: static variable, static method, static statement block. In essence, this is a pointer to this object, but super is a Java keyword.